I'd argue that it was a factor, but certainly not the main factor...I think economy/crime/immigration still biggest reasons by far... although apparently there was a they/them/you ad that was very successful.
I don’t think this is petition worthy really - an artist/band is made an offer which they choose to accept or reject.
If you don’t like the offer, don’t play. It’s really as simple as that. We discussed this last year when Dutty Moonshine complained that they had to do 2 shows to get enough band tickets for their 12 band members.
If the offer isn’t good enough, move on! No obligation.